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BBP1

BBP1S

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The BBP 1 includes 5 stepper driver and 3 heaters, which support dual-extruders or dual-z axis.

Microcontroller

Texas Instrument Sitara AM335X, 1GHZ Cortex-A8 ARM

2 programmable Realtime Units (PRU) to generate really high frequency step and dir signals

4GB eMMC

512M DDR3 memory

10/100M ethernet

microSD Card

USB Host to connect USB disk, WiFi, Camers .etc

USB OTG

Stepper drivers

5 stepper drivers

1/32 microsteps

Each capable of driving bipolar steppers up to 45V and 2.5A

Digital control of the current setting for each driver

Outputs

3 heaters, 2 for extruder and 1 for HBP

5 connectors for fan or led light belt

Inputs

3 thermistor inputs

6 endstops, 3 for min limit switch, 3 for max limit switch

1 connector for external power button

Extensibility

50 pins FFC connector for 24 bits TFT LCD and touch screen

Serial connector for debug

Lots of pins broken out, including stepper control signals and pwm control signals for heaters